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Wayland: Support text_input_unstable_v3 and text_input_unstable_v1

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They are wayland protocols to support input methods:
https://cgit.freedesktop.org/wayland/wayland-protocols/tree/unstable/text-input/text-input-unstable-v3.xml
https://cgit.freedesktop.org/wayland/wayland-protocols/tree/unstable/text-input/text-input-unstable-v1.xml

text_input_unstable_v3 is widely supported by major desktop environment
on GNU/Linux such as GNOME or KDE.

text_input_unstable_v1 isn't so popular but Weston which is the
reference Wayland implementation supports only it and doesn't support
text_input_unstable_v3 so that we also implement it.
This commit is contained in:
Takuro Ashie 2024-02-19 09:37:37 +09:00
parent b0506b7912
commit 12d72f5e1c
7 changed files with 1318 additions and 1 deletions
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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="text_input_unstable_v1">
<copyright>
Copyright © 2012, 2013 Intel Corporation
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<interface name="zwp_text_input_v1" version="1">
<description summary="text input">
An object used for text input. Adds support for text input and input
methods to applications. A text_input object is created from a
wl_text_input_manager and corresponds typically to a text entry in an
application.
Requests are used to activate/deactivate the text_input object and set
state information like surrounding and selected text or the content type.
The information about entered text is sent to the text_input object via
the pre-edit and commit events. Using this interface removes the need
for applications to directly process hardware key events and compose text
out of them.
Text is generally UTF-8 encoded, indices and lengths are in bytes.
Serials are used to synchronize the state between the text input and
an input method. New serials are sent by the text input in the
commit_state request and are used by the input method to indicate
the known text input state in events like preedit_string, commit_string,
and keysym. The text input can then ignore events from the input method
which are based on an outdated state (for example after a reset).
Warning! The protocol described in this file is experimental and
backward incompatible changes may be made. Backward compatible changes
may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in
the protocol and interface names and resetting the interface version.
Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the
interface version number is reset.
</description>
<request name="activate">
<description summary="request activation">
Requests the text_input object to be activated (typically when the
text entry gets focus).
The seat argument is a wl_seat which maintains the focus for this
activation. The surface argument is a wl_surface assigned to the
text_input object and tracked for focus lost. The enter event
is emitted on successful activation.
</description>
<arg name="seat" type="object" interface="wl_seat"/>
<arg name="surface" type="object" interface="wl_surface"/>
</request>
<request name="deactivate">
<description summary="request deactivation">
Requests the text_input object to be deactivated (typically when the
text entry lost focus). The seat argument is a wl_seat which was used
for activation.
</description>
<arg name="seat" type="object" interface="wl_seat"/>
</request>
<request name="show_input_panel">
<description summary="show input panels">
Requests input panels (virtual keyboard) to show.
</description>
</request>
<request name="hide_input_panel">
<description summary="hide input panels">
Requests input panels (virtual keyboard) to hide.
</description>
</request>
<request name="reset">
<description summary="reset">
Should be called by an editor widget when the input state should be
reset, for example after the text was changed outside of the normal
input method flow.
</description>
</request>
<request name="set_surrounding_text">
<description summary="sets the surrounding text">
Sets the plain surrounding text around the input position. Text is
UTF-8 encoded. Cursor is the byte offset within the
surrounding text. Anchor is the byte offset of the
selection anchor within the surrounding text. If there is no selected
text anchor, then it is the same as cursor.
</description>
<arg name="text" type="string"/>
<arg name="cursor" type="uint"/>
<arg name="anchor" type="uint"/>
</request>
<enum name="content_hint" bitfield="true">
<description summary="content hint">
Content hint is a bitmask to allow to modify the behavior of the text
input.
</description>
<entry name="none" value="0x0" summary="no special behaviour"/>
<entry name="default" value="0x7" summary="auto completion, correction and capitalization"/>
<entry name="password" value="0xc0" summary="hidden and sensitive text"/>
<entry name="auto_completion" value="0x1" summary="suggest word completions"/>
<entry name="auto_correction" value="0x2" summary="suggest word corrections"/>
<entry name="auto_capitalization" value="0x4" summary="switch to uppercase letters at the start of a sentence"/>
<entry name="lowercase" value="0x8" summary="prefer lowercase letters"/>
<entry name="uppercase" value="0x10" summary="prefer uppercase letters"/>
<entry name="titlecase" value="0x20" summary="prefer casing for titles and headings (can be language dependent)"/>
<entry name="hidden_text" value="0x40" summary="characters should be hidden"/>
<entry name="sensitive_data" value="0x80" summary="typed text should not be stored"/>
<entry name="latin" value="0x100" summary="just latin characters should be entered"/>
<entry name="multiline" value="0x200" summary="the text input is multiline"/>
</enum>
<enum name="content_purpose">
<description summary="content purpose">
The content purpose allows to specify the primary purpose of a text
input.
This allows an input method to show special purpose input panels with
extra characters or to disallow some characters.
</description>
<entry name="normal" value="0" summary="default input, allowing all characters"/>
<entry name="alpha" value="1" summary="allow only alphabetic characters"/>
<entry name="digits" value="2" summary="allow only digits"/>
<entry name="number" value="3" summary="input a number (including decimal separator and sign)"/>
<entry name="phone" value="4" summary="input a phone number"/>
<entry name="url" value="5" summary="input an URL"/>
<entry name="email" value="6" summary="input an email address"/>
<entry name="name" value="7" summary="input a name of a person"/>
<entry name="password" value="8" summary="input a password (combine with password or sensitive_data hint)"/>
<entry name="date" value="9" summary="input a date"/>
<entry name="time" value="10" summary="input a time"/>
<entry name="datetime" value="11" summary="input a date and time"/>
<entry name="terminal" value="12" summary="input for a terminal"/>
</enum>
<request name="set_content_type">
<description summary="set content purpose and hint">
Sets the content purpose and content hint. While the purpose is the
basic purpose of an input field, the hint flags allow to modify some
of the behavior.
When no content type is explicitly set, a normal content purpose with
default hints (auto completion, auto correction, auto capitalization)
should be assumed.
</description>
<arg name="hint" type="uint" enum="content_hint" />
<arg name="purpose" type="uint" enum="content_purpose" />
</request>
<request name="set_cursor_rectangle">
<arg name="x" type="int"/>
<arg name="y" type="int"/>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</request>
<request name="set_preferred_language">
<description summary="sets preferred language">
Sets a specific language. This allows for example a virtual keyboard to
show a language specific layout. The "language" argument is an RFC-3066
format language tag.
It could be used for example in a word processor to indicate the
language of the currently edited document or in an instant message
application which tracks languages of contacts.
</description>
<arg name="language" type="string"/>
</request>
<request name="commit_state">
<arg name="serial" type="uint" summary="used to identify the known state"/>
</request>
<request name="invoke_action">
<arg name="button" type="uint"/>
<arg name="index" type="uint"/>
</request>
<event name="enter">
<description summary="enter event">
Notify the text_input object when it received focus. Typically in
response to an activate request.
</description>
<arg name="surface" type="object" interface="wl_surface"/>
</event>
<event name="leave">
<description summary="leave event">
Notify the text_input object when it lost focus. Either in response
to a deactivate request or when the assigned surface lost focus or was
destroyed.
</description>
</event>
<event name="modifiers_map">
<description summary="modifiers map">
Transfer an array of 0-terminated modifier names. The position in
the array is the index of the modifier as used in the modifiers
bitmask in the keysym event.
</description>
<arg name="map" type="array"/>
</event>
<event name="input_panel_state">
<description summary="state of the input panel">
Notify when the visibility state of the input panel changed.
</description>
<arg name="state" type="uint"/>
</event>
<event name="preedit_string">
<description summary="pre-edit">
Notify when a new composing text (pre-edit) should be set around the
current cursor position. Any previously set composing text should
be removed.
The commit text can be used to replace the preedit text on reset
(for example on unfocus).
The text input should also handle all preedit_style and preedit_cursor
events occurring directly before preedit_string.
</description>
<arg name="serial" type="uint" summary="serial of the latest known text input state"/>
<arg name="text" type="string"/>
<arg name="commit" type="string"/>
</event>
<enum name="preedit_style">
<entry name="default" value="0" summary="default style for composing text"/>
<entry name="none" value="1" summary="style should be the same as in non-composing text"/>
<entry name="active" value="2"/>
<entry name="inactive" value="3"/>
<entry name="highlight" value="4"/>
<entry name="underline" value="5"/>
<entry name="selection" value="6"/>
<entry name="incorrect" value="7"/>
</enum>
<event name="preedit_styling">
<description summary="pre-edit styling">
Sets styling information on composing text. The style is applied for
length bytes from index relative to the beginning of the composing
text (as byte offset). Multiple styles can
be applied to a composing text by sending multiple preedit_styling
events.
This event is handled as part of a following preedit_string event.
</description>
<arg name="index" type="uint"/>
<arg name="length" type="uint"/>
<arg name="style" type="uint" enum="preedit_style" />
</event>
<event name="preedit_cursor">
<description summary="pre-edit cursor">
Sets the cursor position inside the composing text (as byte
offset) relative to the start of the composing text. When index is a
negative number no cursor is shown.
This event is handled as part of a following preedit_string event.
</description>
<arg name="index" type="int"/>
</event>
<event name="commit_string">
<description summary="commit">
Notify when text should be inserted into the editor widget. The text to
commit could be either just a single character after a key press or the
result of some composing (pre-edit). It could also be an empty text
when some text should be removed (see delete_surrounding_text) or when
the input cursor should be moved (see cursor_position).
Any previously set composing text should be removed.
</description>
<arg name="serial" type="uint" summary="serial of the latest known text input state"/>
<arg name="text" type="string"/>
</event>
<event name="cursor_position">
<description summary="set cursor to new position">
Notify when the cursor or anchor position should be modified.
This event should be handled as part of a following commit_string
event.
</description>
<arg name="index" type="int"/>
<arg name="anchor" type="int"/>
</event>
<event name="delete_surrounding_text">
<description summary="delete surrounding text">
Notify when the text around the current cursor position should be
deleted.
Index is relative to the current cursor (in bytes).
Length is the length of deleted text (in bytes).
This event should be handled as part of a following commit_string
event.
</description>
<arg name="index" type="int"/>
<arg name="length" type="uint"/>
</event>
<event name="keysym">
<description summary="keysym">
Notify when a key event was sent. Key events should not be used
for normal text input operations, which should be done with
commit_string, delete_surrounding_text, etc. The key event follows
the wl_keyboard key event convention. Sym is an XKB keysym, state a
wl_keyboard key_state. Modifiers are a mask for effective modifiers
(where the modifier indices are set by the modifiers_map event)
</description>
<arg name="serial" type="uint" summary="serial of the latest known text input state"/>
<arg name="time" type="uint"/>
<arg name="sym" type="uint"/>
<arg name="state" type="uint"/>
<arg name="modifiers" type="uint"/>
</event>
<event name="language">
<description summary="language">
Sets the language of the input text. The "language" argument is an
RFC-3066 format language tag.
</description>
<arg name="serial" type="uint" summary="serial of the latest known text input state"/>
<arg name="language" type="string"/>
</event>
<enum name="text_direction">
<entry name="auto" value="0" summary="automatic text direction based on text and language"/>
<entry name="ltr" value="1" summary="left-to-right"/>
<entry name="rtl" value="2" summary="right-to-left"/>
</enum>
<event name="text_direction">
<description summary="text direction">
Sets the text direction of input text.
It is mainly needed for showing an input cursor on the correct side of
the editor when there is no input done yet and making sure neutral
direction text is laid out properly.
</description>
<arg name="serial" type="uint" summary="serial of the latest known text input state"/>
<arg name="direction" type="uint" enum="text_direction" />
</event>
</interface>
<interface name="zwp_text_input_manager_v1" version="1">
<description summary="text input manager">
A factory for text_input objects. This object is a global singleton.
</description>
<request name="create_text_input">
<description summary="create text input">
Creates a new text_input object.
</description>
<arg name="id" type="new_id" interface="zwp_text_input_v1"/>
</request>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="text_input_unstable_v3">
<copyright>
Copyright © 2012, 2013 Intel Corporation
Copyright © 2015, 2016 Jan Arne Petersen
Copyright © 2017, 2018 Red Hat, Inc.
Copyright © 2018 Purism SPC
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<description summary="Protocol for composing text">
This protocol allows compositors to act as input methods and to send text
to applications. A text input object is used to manage state of what are
typically text entry fields in the application.
This document adheres to the RFC 2119 when using words like "must",
"should", "may", etc.
Warning! The protocol described in this file is experimental and
backward incompatible changes may be made. Backward compatible changes
may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in
the protocol and interface names and resetting the interface version.
Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the
interface version number is reset.
</description>
<interface name="zwp_text_input_v3" version="1">
<description summary="text input">
The zwp_text_input_v3 interface represents text input and input methods
associated with a seat. It provides enter/leave events to follow the
text input focus for a seat.
Requests are used to enable/disable the text-input object and set
state information like surrounding and selected text or the content type.
The information about the entered text is sent to the text-input object
via the preedit_string and commit_string events.
Text is valid UTF-8 encoded, indices and lengths are in bytes. Indices
must not point to middle bytes inside a code point: they must either
point to the first byte of a code point or to the end of the buffer.
Lengths must be measured between two valid indices.
Focus moving throughout surfaces will result in the emission of
zwp_text_input_v3.enter and zwp_text_input_v3.leave events. The focused
surface must commit zwp_text_input_v3.enable and
zwp_text_input_v3.disable requests as the keyboard focus moves across
editable and non-editable elements of the UI. Those two requests are not
expected to be paired with each other, the compositor must be able to
handle consecutive series of the same request.
State is sent by the state requests (set_surrounding_text,
set_content_type and set_cursor_rectangle) and a commit request. After an
enter event or disable request all state information is invalidated and
needs to be resent by the client.
</description>
<request name="destroy" type="destructor">
<description summary="Destroy the wp_text_input">
Destroy the wp_text_input object. Also disables all surfaces enabled
through this wp_text_input object.
</description>
</request>
<request name="enable">
<description summary="Request text input to be enabled">
Requests text input on the surface previously obtained from the enter
event.
This request must be issued every time the active text input changes
to a new one, including within the current surface. Use
zwp_text_input_v3.disable when there is no longer any input focus on
the current surface.
Clients must not enable more than one text input on the single seat
and should disable the current text input before enabling the new one.
At most one instance of text input may be in enabled state per instance,
Requests to enable the another text input when some text input is active
must be ignored by compositor.
This request resets all state associated with previous enable, disable,
set_surrounding_text, set_text_change_cause, set_content_type, and
set_cursor_rectangle requests, as well as the state associated with
preedit_string, commit_string, and delete_surrounding_text events.
The set_surrounding_text, set_content_type and set_cursor_rectangle
requests must follow if the text input supports the necessary
functionality.
State set with this request is double-buffered. It will get applied on
the next zwp_text_input_v3.commit request, and stay valid until the
next committed enable or disable request.
The changes must be applied by the compositor after issuing a
zwp_text_input_v3.commit request.
</description>
</request>
<request name="disable">
<description summary="Disable text input on a surface">
Explicitly disable text input on the current surface (typically when
there is no focus on any text entry inside the surface).
State set with this request is double-buffered. It will get applied on
the next zwp_text_input_v3.commit request.
</description>
</request>
<request name="set_surrounding_text">
<description summary="sets the surrounding text">
Sets the surrounding plain text around the input, excluding the preedit
text.
The client should notify the compositor of any changes in any of the
values carried with this request, including changes caused by handling
incoming text-input events as well as changes caused by other
mechanisms like keyboard typing.
If the client is unaware of the text around the cursor, it should not
issue this request, to signify lack of support to the compositor.
Text is UTF-8 encoded, and should include the cursor position, the
complete selection and additional characters before and after them.
There is a maximum length of wayland messages, so text can not be
longer than 4000 bytes.
Cursor is the byte offset of the cursor within text buffer.
Anchor is the byte offset of the selection anchor within text buffer.
If there is no selected text, anchor is the same as cursor.
If any preedit text is present, it is replaced with a cursor for the
purpose of this event.
Values set with this request are double-buffered. They will get applied
on the next zwp_text_input_v3.commit request, and stay valid until the
next committed enable or disable request.
The initial state for affected fields is empty, meaning that the text
input does not support sending surrounding text. If the empty values
get applied, subsequent attempts to change them may have no effect.
</description>
<arg name="text" type="string"/>
<arg name="cursor" type="int"/>
<arg name="anchor" type="int"/>
</request>
<enum name="change_cause">
<description summary="text change reason">
Reason for the change of surrounding text or cursor posision.
</description>
<entry name="input_method" value="0" summary="input method caused the change"/>
<entry name="other" value="1" summary="something else than the input method caused the change"/>
</enum>
<request name="set_text_change_cause">
<description summary="indicates the cause of surrounding text change">
Tells the compositor why the text surrounding the cursor changed.
Whenever the client detects an external change in text, cursor, or
anchor posision, it must issue this request to the compositor. This
request is intended to give the input method a chance to update the
preedit text in an appropriate way, e.g. by removing it when the user
starts typing with a keyboard.
cause describes the source of the change.
The value set with this request is double-buffered. It must be applied
and reset to initial at the next zwp_text_input_v3.commit request.
The initial value of cause is input_method.
</description>
<arg name="cause" type="uint" enum="change_cause"/>
</request>
<enum name="content_hint" bitfield="true">
<description summary="content hint">
Content hint is a bitmask to allow to modify the behavior of the text
input.
</description>
<entry name="none" value="0x0" summary="no special behavior"/>
<entry name="completion" value="0x1" summary="suggest word completions"/>
<entry name="spellcheck" value="0x2" summary="suggest word corrections"/>
<entry name="auto_capitalization" value="0x4" summary="switch to uppercase letters at the start of a sentence"/>
<entry name="lowercase" value="0x8" summary="prefer lowercase letters"/>
<entry name="uppercase" value="0x10" summary="prefer uppercase letters"/>
<entry name="titlecase" value="0x20" summary="prefer casing for titles and headings (can be language dependent)"/>
<entry name="hidden_text" value="0x40" summary="characters should be hidden"/>
<entry name="sensitive_data" value="0x80" summary="typed text should not be stored"/>
<entry name="latin" value="0x100" summary="just Latin characters should be entered"/>
<entry name="multiline" value="0x200" summary="the text input is multiline"/>
</enum>
<enum name="content_purpose">
<description summary="content purpose">
The content purpose allows to specify the primary purpose of a text
input.
This allows an input method to show special purpose input panels with
extra characters or to disallow some characters.
</description>
<entry name="normal" value="0" summary="default input, allowing all characters"/>
<entry name="alpha" value="1" summary="allow only alphabetic characters"/>
<entry name="digits" value="2" summary="allow only digits"/>
<entry name="number" value="3" summary="input a number (including decimal separator and sign)"/>
<entry name="phone" value="4" summary="input a phone number"/>
<entry name="url" value="5" summary="input an URL"/>
<entry name="email" value="6" summary="input an email address"/>
<entry name="name" value="7" summary="input a name of a person"/>
<entry name="password" value="8" summary="input a password (combine with sensitive_data hint)"/>
<entry name="pin" value="9" summary="input is a numeric password (combine with sensitive_data hint)"/>
<entry name="date" value="10" summary="input a date"/>
<entry name="time" value="11" summary="input a time"/>
<entry name="datetime" value="12" summary="input a date and time"/>
<entry name="terminal" value="13" summary="input for a terminal"/>
</enum>
<request name="set_content_type">
<description summary="set content purpose and hint">
Sets the content purpose and content hint. While the purpose is the
basic purpose of an input field, the hint flags allow to modify some of
the behavior.
Values set with this request are double-buffered. They will get applied
on the next zwp_text_input_v3.commit request.
Subsequent attempts to update them may have no effect. The values
remain valid until the next committed enable or disable request.
The initial value for hint is none, and the initial value for purpose
is normal.
</description>
<arg name="hint" type="uint" enum="content_hint"/>
<arg name="purpose" type="uint" enum="content_purpose"/>
</request>
<request name="set_cursor_rectangle">
<description summary="set cursor position">
Marks an area around the cursor as a x, y, width, height rectangle in
surface local coordinates.
Allows the compositor to put a window with word suggestions near the
cursor, without obstructing the text being input.
If the client is unaware of the position of edited text, it should not
issue this request, to signify lack of support to the compositor.
Values set with this request are double-buffered. They will get applied
on the next zwp_text_input_v3.commit request, and stay valid until the
next committed enable or disable request.
The initial values describing a cursor rectangle are empty. That means
the text input does not support describing the cursor area. If the
empty values get applied, subsequent attempts to change them may have
no effect.
</description>
<arg name="x" type="int"/>
<arg name="y" type="int"/>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</request>
<request name="commit">
<description summary="commit state">
Atomically applies state changes recently sent to the compositor.
The commit request establishes and updates the state of the client, and
must be issued after any changes to apply them.
Text input state (enabled status, content purpose, content hint,
surrounding text and change cause, cursor rectangle) is conceptually
double-buffered within the context of a text input, i.e. between a
committed enable request and the following committed enable or disable
request.
Protocol requests modify the pending state, as opposed to the current
state in use by the input method. A commit request atomically applies
all pending state, replacing the current state. After commit, the new
pending state is as documented for each related request.
Requests are applied in the order of arrival.
Neither current nor pending state are modified unless noted otherwise.
The compositor must count the number of commit requests coming from
each zwp_text_input_v3 object and use the count as the serial in done
events.
</description>
</request>
<event name="enter">
<description summary="enter event">
Notification that this seat's text-input focus is on a certain surface.
If client has created multiple text input objects, compositor must send
this event to all of them.
When the seat has the keyboard capability the text-input focus follows
the keyboard focus. This event sets the current surface for the
text-input object.
</description>
<arg name="surface" type="object" interface="wl_surface"/>
</event>
<event name="leave">
<description summary="leave event">
Notification that this seat's text-input focus is no longer on a
certain surface. The client should reset any preedit string previously
set.
The leave notification clears the current surface. It is sent before
the enter notification for the new focus. After leave event, compositor
must ignore requests from any text input instances until next enter
event.
When the seat has the keyboard capability the text-input focus follows
the keyboard focus.
</description>
<arg name="surface" type="object" interface="wl_surface"/>
</event>
<event name="preedit_string">
<description summary="pre-edit">
Notify when a new composing text (pre-edit) should be set at the
current cursor position. Any previously set composing text must be
removed. Any previously existing selected text must be removed.
The argument text contains the pre-edit string buffer.
The parameters cursor_begin and cursor_end are counted in bytes
relative to the beginning of the submitted text buffer. Cursor should
be hidden when both are equal to -1.
They could be represented by the client as a line if both values are
the same, or as a text highlight otherwise.
Values set with this event are double-buffered. They must be applied
and reset to initial on the next zwp_text_input_v3.done event.
The initial value of text is an empty string, and cursor_begin,
cursor_end and cursor_hidden are all 0.
</description>
<arg name="text" type="string" allow-null="true"/>
<arg name="cursor_begin" type="int"/>
<arg name="cursor_end" type="int"/>
</event>
<event name="commit_string">
<description summary="text commit">
Notify when text should be inserted into the editor widget. The text to
commit could be either just a single character after a key press or the
result of some composing (pre-edit).
Values set with this event are double-buffered. They must be applied
and reset to initial on the next zwp_text_input_v3.done event.
The initial value of text is an empty string.
</description>
<arg name="text" type="string" allow-null="true"/>
</event>
<event name="delete_surrounding_text">
<description summary="delete surrounding text">
Notify when the text around the current cursor position should be
deleted.
Before_length and after_length are the number of bytes before and after
the current cursor index (excluding the selection) to delete.
If a preedit text is present, in effect before_length is counted from
the beginning of it, and after_length from its end (see done event
sequence).
Values set with this event are double-buffered. They must be applied
and reset to initial on the next zwp_text_input_v3.done event.
The initial values of both before_length and after_length are 0.
</description>
<arg name="before_length" type="uint" summary="length of text before current cursor position"/>
<arg name="after_length" type="uint" summary="length of text after current cursor position"/>
</event>
<event name="done">
<description summary="apply changes">
Instruct the application to apply changes to state requested by the
preedit_string, commit_string and delete_surrounding_text events. The
state relating to these events is double-buffered, and each one
modifies the pending state. This event replaces the current state with
the pending state.
The application must proceed by evaluating the changes in the following
order:
1. Replace existing preedit string with the cursor.
2. Delete requested surrounding text.
3. Insert commit string with the cursor at its end.
4. Calculate surrounding text to send.
5. Insert new preedit text in cursor position.
6. Place cursor inside preedit text.
The serial number reflects the last state of the zwp_text_input_v3
object known to the compositor. The value of the serial argument must
be equal to the number of commit requests already issued on that object.
When the client receives a done event with a serial different than the
number of past commit requests, it must proceed with evaluating and
applying the changes as normal, except it should not change the current
state of the zwp_text_input_v3 object. All pending state requests
(set_surrounding_text, set_content_type and set_cursor_rectangle) on
the zwp_text_input_v3 object should be sent and committed after
receiving a zwp_text_input_v3.done event with a matching serial.
</description>
<arg name="serial" type="uint"/>
</event>
</interface>
<interface name="zwp_text_input_manager_v3" version="1">
<description summary="text input manager">
A factory for text-input objects. This object is a global singleton.
</description>
<request name="destroy" type="destructor">
<description summary="Destroy the wp_text_input_manager">
Destroy the wp_text_input_manager object.
</description>
</request>
<request name="get_text_input">
<description summary="create a new text input object">
Creates a new text-input object for a given seat.
</description>
<arg name="id" type="new_id" interface="zwp_text_input_v3"/>
<arg name="seat" type="object" interface="wl_seat"/>
</request>
</interface>
</protocol>

4
include/GLFW/glfw3.h
View File

@ -5257,6 +5257,8 @@ GLFWAPI void glfwSetPreeditCursorRectangle(GLFWwindow* window, int x, int y, int
* @remark @x11 Since over-the-spot style is used by default, you don't need
* to use this function.
*
* @remark @wayland This function is currently not supported.
*
* @par Thread Safety
* This function may only be called from the main thread.
*
@ -5463,7 +5465,7 @@ GLFWAPI GLFWpreeditfun glfwSetPreeditCallback(GLFWwindow* window, GLFWpreeditfun
* For more information about the callback parameters, see the
* [function pointer type](@ref GLFWimestatusfun).
*
* @remark @x11 Don't support this function. The callback is not called.
* @remark @x11 @wayland Don't support this function. The callback is not called.
*
* @par Thread Safety
* This function may only be called from the main thread.

2
src/CMakeLists.txt
View File

@ -104,6 +104,8 @@ if (GLFW_BUILD_WAYLAND)
generate_wayland_protocol("fractional-scale-v1.xml")
generate_wayland_protocol("xdg-activation-v1.xml")
generate_wayland_protocol("xdg-decoration-unstable-v1.xml")
generate_wayland_protocol("text-input-unstable-v1.xml")
generate_wayland_protocol("text-input-unstable-v3.xml")
endif()
if (WIN32 AND GLFW_BUILD_SHARED_LIBRARY)

28
src/wl_init.c
View File

@ -49,6 +49,8 @@
#include "fractional-scale-v1-client-protocol.h"
#include "xdg-activation-v1-client-protocol.h"
#include "idle-inhibit-unstable-v1-client-protocol.h"
#include "text-input-unstable-v1-client-protocol.h"
#include "text-input-unstable-v3-client-protocol.h"
// NOTE: Versions of wayland-scanner prior to 1.17.91 named every global array of
// wl_interface pointers 'types', making it impossible to combine several unmodified
@ -91,6 +93,14 @@
#include "idle-inhibit-unstable-v1-client-protocol-code.h"
#undef types
#define types _glfw_text_input_v1_types
#include "text-input-unstable-v1-client-protocol-code.h"
#undef types
#define types _glfw_text_input_v3_types
#include "text-input-unstable-v3-client-protocol-code.h"
#undef types
static void wmBaseHandlePing(void* userData,
struct xdg_wm_base* wmBase,
uint32_t serial)
@ -208,6 +218,20 @@ static void registryHandleGlobal(void* userData,
&wp_fractional_scale_manager_v1_interface,
1);
}
else if (strcmp(interface, "zwp_text_input_manager_v1") == 0)
{
_glfw.wl.textInputManagerV1 =
wl_registry_bind(registry, name,
&zwp_text_input_manager_v1_interface,
1);
}
else if (strcmp(interface, "zwp_text_input_manager_v3") == 0)
{
_glfw.wl.textInputManagerV3 =
wl_registry_bind(registry, name,
&zwp_text_input_manager_v3_interface,
1);
}
}
static void registryHandleGlobalRemove(void* userData,
@ -988,6 +1012,10 @@ void _glfwTerminateWayland(void)
xdg_activation_v1_destroy(_glfw.wl.activationManager);
if (_glfw.wl.fractionalScaleManager)
wp_fractional_scale_manager_v1_destroy(_glfw.wl.fractionalScaleManager);
if (_glfw.wl.textInputManagerV1)
zwp_text_input_manager_v1_destroy(_glfw.wl.textInputManagerV1);
if (_glfw.wl.textInputManagerV3)
zwp_text_input_manager_v3_destroy(_glfw.wl.textInputManagerV3);
if (_glfw.wl.registry)
wl_registry_destroy(_glfw.wl.registry);
if (_glfw.wl.display)

9
src/wl_platform.h
View File

@ -411,6 +411,13 @@ typedef struct _GLFWwindowWayland
_GLFWfallbackEdgeWayland top, left, right, bottom;
struct wl_surface* focus;
} fallback;
struct zwp_text_input_v1* textInputV1;
struct zwp_text_input_v3* textInputV3;
struct {
char* preeditText;
char* commitTextOnReset;
} textInputV1Context;
} _GLFWwindowWayland;
// Wayland-specific global data
@ -435,6 +442,8 @@ typedef struct _GLFWlibraryWayland
struct zwp_idle_inhibit_manager_v1* idleInhibitManager;
struct xdg_activation_v1* activationManager;
struct wp_fractional_scale_manager_v1* fractionalScaleManager;
struct zwp_text_input_manager_v1* textInputManagerV1;
struct zwp_text_input_manager_v3* textInputManagerV3;
_GLFWofferWayland* offers;
unsigned int offerCount;

434
src/wl_window.c
View File

@ -51,6 +51,8 @@
#include "xdg-activation-v1-client-protocol.h"
#include "idle-inhibit-unstable-v1-client-protocol.h"
#include "fractional-scale-v1-client-protocol.h"
#include "text-input-unstable-v1-client-protocol.h"
#include "text-input-unstable-v3-client-protocol.h"
#define GLFW_BORDER_SIZE 4
#define GLFW_CAPTION_HEIGHT 24
@ -555,6 +557,22 @@ const struct wp_fractional_scale_v1_listener fractionalScaleListener =
fractionalScaleHandlePreferredScale,
};
static void activateTextInputV1(_GLFWwindow* window)
{
if (!window->wl.textInputV1)
return;
zwp_text_input_v1_show_input_panel(window->wl.textInputV1);
zwp_text_input_v1_activate(window->wl.textInputV1, _glfw.wl.seat, window->wl.surface);
}
static void deactivateTextInputV1(_GLFWwindow* window)
{
if (!window->wl.textInputV1)
return;
zwp_text_input_v1_hide_input_panel(window->wl.textInputV1);
zwp_text_input_v1_deactivate(window->wl.textInputV1, _glfw.wl.seat);
}
static void xdgToplevelHandleConfigure(void* userData,
struct xdg_toplevel* toplevel,
int32_t width,
@ -582,6 +600,7 @@ static void xdgToplevelHandleConfigure(void* userData,
break;
case XDG_TOPLEVEL_STATE_ACTIVATED:
window->wl.pending.activated = GLFW_TRUE;
activateTextInputV1(window);
break;
}
}
@ -1538,6 +1557,11 @@ static void pointerHandleButton(void* userData,
if (!window)
return;
// On weston, pressing the title bar will cause leave event and never emit
// enter event even though back to content area by pressing mouse button
// just after it. So activate it here explicitly.
activateTextInputV1(window);
if (window->wl.hovered)
{
_glfw.wl.serial = serial;
@ -2118,6 +2142,379 @@ void _glfwAddDataDeviceListenerWayland(struct wl_data_device* device)
wl_data_device_add_listener(device, &dataDeviceListener, NULL);
}
// Callbacks for text_input_unstable_v3 protocol.
//
// This protocol is widely supported by major desktop environments such as GNOME
// or KDE.
//
static void textInputV3Enter(void* data,
struct zwp_text_input_v3* textInputV3,
struct wl_surface* surface)
{
zwp_text_input_v3_enable(textInputV3);
zwp_text_input_v3_commit(textInputV3);
}
static void textInputV3Reset(_GLFWwindow* window)
{
_GLFWpreedit* preedit = &window->preedit;
preedit->textCount = 0;
preedit->blockSizesCount = 0;
preedit->focusedBlockIndex = 0;
preedit->caretIndex = 0;
_glfwInputPreedit(window);
}
static void textInputV3Leave(void* data,
struct zwp_text_input_v3* textInputV3,
struct wl_surface* surface)
{
_GLFWwindow* window = (_GLFWwindow*) data;
zwp_text_input_v3_disable(textInputV3);
zwp_text_input_v3_commit(textInputV3);
// Although this should be handled by IM via preedit callback, it seems that
// the behavior varies depending on implemention. It's cleared by IM on
// Ubuntu 22.04 but not cleared on Ubuntu 20.04.
textInputV3Reset(window);
}
static void textInputV3PreeditString(void* data,
struct zwp_text_input_v3* textInputV3,
const char* text,
int32_t cursorBegin,
int32_t cursorEnd)
{
_GLFWwindow* window = (_GLFWwindow*) data;
_GLFWpreedit* preedit = &window->preedit;
const char* cur = text;
unsigned int cursorLength = 0;
preedit->textCount = 0;
preedit->blockSizesCount = 0;
preedit->focusedBlockIndex = 0;
preedit->caretIndex = 0;
// Store preedit text
while (cur && *cur)
{
uint32_t codepoint = _glfwDecodeUTF8(&cur);
++preedit->textCount;
if (cur == text + cursorBegin)
preedit->caretIndex = preedit->textCount;
if (cursorBegin != cursorEnd && cur == text + cursorEnd)
cursorLength = preedit->textCount - cursorBegin;
if (preedit->textBufferCount < preedit->textCount + 1)
{
int bufSize = preedit->textBufferCount;
while (bufSize < preedit->textCount + 1)
bufSize = (bufSize == 0) ? 1 : bufSize * 2;
preedit->text = _glfw_realloc(preedit->text,
sizeof(unsigned int) * bufSize);
if (!preedit->text)
return;
preedit->textBufferCount = bufSize;
}
preedit->text[preedit->textCount - 1] = codepoint;
}
if (preedit->text)
preedit->text[preedit->textCount] = 0;
// Store preedit blocks
if (preedit->textCount)
{
int* blocks = preedit->blockSizes;
int blockCount = preedit->blockSizesCount;
int cursorPos = preedit->caretIndex;
int textCount = preedit->textCount;
if (!preedit->blockSizes)
{
int bufSize = 3;
preedit->blockSizesBufferCount = bufSize;
preedit->blockSizes = _glfw_calloc(sizeof(int), bufSize);
if (!preedit->blockSizes)
return;
blocks = preedit->blockSizes;
}
if (cursorLength && cursorPos)
blocks[blockCount++] = cursorPos;
preedit->focusedBlockIndex = blockCount;
blocks[blockCount++] = cursorLength ? cursorLength : textCount;
if (cursorLength && cursorPos + cursorLength != textCount)
blocks[blockCount++] = textCount - cursorPos - cursorLength;
preedit->blockSizesCount = blockCount;
}
}
static void textInputV3CommitString(void* data,
struct zwp_text_input_v3* textInputV3,
const char* text)
{
_GLFWwindow* window = (_GLFWwindow*) data;
const char* cur = text;
if (!window->callbacks.character)
return;
while (cur && *cur)
{
uint32_t codepoint = _glfwDecodeUTF8(&cur);
window->callbacks.character((GLFWwindow*) window, codepoint);
}
}
static void textInputV3DeleteSurroundingText(void* data,
struct zwp_text_input_v3* textInputV3,
uint32_t beforeLength,
uint32_t afterLength)
{
}
static void textInputV3Done(void* data,
struct zwp_text_input_v3* textInputV3,
uint32_t serial)
{
_GLFWwindow* window = (_GLFWwindow*) data;
_glfwUpdatePreeditCursorRectangleWayland(window);
_glfwInputPreedit(window);
}
static const struct zwp_text_input_v3_listener textInputV3Listener =
{
textInputV3Enter,
textInputV3Leave,
textInputV3PreeditString,
textInputV3CommitString,
textInputV3DeleteSurroundingText,
textInputV3Done
};
// Callbacks for text_input_unstable_v1 protocol
//
// This protocol isn't so popular but Weston which is the reference Wayland
// implementation supports only this protocol and doesn't support
// text_input_unstable_v3.
//
static void textInputV1Enter(void* data,
struct zwp_text_input_v1* textInputV1,
struct wl_surface* surface)
{
_GLFWwindow* window = (_GLFWwindow*) data;
activateTextInputV1(window);
}
static void textInputV1Reset(_GLFWwindow* window)
{
_GLFWpreedit* preedit = &window->preedit;
preedit->textCount = 0;
preedit->blockSizesCount = 0;
preedit->focusedBlockIndex = 0;
preedit->caretIndex = 0;
_glfw_free(window->wl.textInputV1Context.preeditText);
_glfw_free(window->wl.textInputV1Context.commitTextOnReset);
window->wl.textInputV1Context.preeditText = NULL;
window->wl.textInputV1Context.commitTextOnReset = NULL;
_glfwInputPreedit(window);
}
static void textInputV1Leave(void* data,
struct zwp_text_input_v1* textInputV1)
{
_GLFWwindow* window = (_GLFWwindow*) data;
char* commitText = window->wl.textInputV1Context.commitTextOnReset;
textInputV3CommitString(data, NULL, commitText);
textInputV1Reset(window);
deactivateTextInputV1(window);
}
static void textInputV1ModifiersMap(void* data,
struct zwp_text_input_v1* textInputV1,
struct wl_array* map)
{
}
static void textInputV1InputPanelState(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t state)
{
}
static void textInputV1PreeditString(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t serial,
const char* text,
const char* commit)
{
_GLFWwindow* window = (_GLFWwindow*) data;
_glfw_free(window->wl.textInputV1Context.preeditText);
_glfw_free(window->wl.textInputV1Context.commitTextOnReset);
window->wl.textInputV1Context.preeditText = strdup(text);
window->wl.textInputV1Context.commitTextOnReset = strdup(commit);
textInputV3PreeditString(data, NULL, text, 0, 0);
_glfwInputPreedit(window);
}
static void textInputV1PreeditStyling(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t index,
uint32_t length,
uint32_t style)
{
}
static void textInputV1PreeditCursor(void* data,
struct zwp_text_input_v1* textInputV1,
int32_t index)
{
_GLFWwindow* window = (_GLFWwindow*) data;
_GLFWpreedit* preedit = &window->preedit;
const char* text = window->wl.textInputV1Context.preeditText;
const char* cur = text;
preedit->caretIndex = 0;
if (index <= 0 || preedit->textCount == 0)
return;
while (cur && *cur)
{
_glfwDecodeUTF8(&cur);
++preedit->caretIndex;
if (cur >= text + index)
break;
if (preedit->caretIndex > preedit->textCount)
break;
}
}
static void textInputV1CommitString(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t serial,
const char* text)
{
_GLFWwindow* window = (_GLFWwindow*) data;
textInputV1Reset(window);
textInputV3CommitString(data, NULL, text);
}
static void textInputV1CursorPosition(void* data,
struct zwp_text_input_v1* textInputV1,
int32_t index,
int32_t anchor)
{
// It's for surrounding text feature which isn't supported by GLFW.
}
static void textInputV1DeleteSurroundingText(void* data,
struct zwp_text_input_v1* textInputV1,
int32_t index,
uint32_t length)
{
}
static void textInputV1Keysym(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t serial,
uint32_t time,
uint32_t sym,
uint32_t state,
uint32_t modifiers)
{
uint32_t scancode;
// This code supports only weston-keyboard because we aren't aware
// of any other input methods that actually support this API.
// Supporting all keysyms is overkill for now.
switch (sym)
{
case XKB_KEY_Left:
scancode = KEY_LEFT;
break;
case XKB_KEY_Right:
scancode = KEY_RIGHT;
break;
case XKB_KEY_Up:
scancode = KEY_UP;
break;
case XKB_KEY_Down:
scancode = KEY_DOWN;
break;
case XKB_KEY_BackSpace:
scancode = KEY_BACKSPACE;
break;
case XKB_KEY_Tab:
scancode = KEY_TAB;
break;
case XKB_KEY_KP_Enter:
scancode = KEY_KPENTER;
break;
case XKB_KEY_Return:
scancode = KEY_ENTER;
break;
default:
return;
}
_glfw.wl.xkb.modifiers = modifiers;
keyboardHandleKey(data,
_glfw.wl.keyboard,
serial,
time,
scancode,
state);
}
static void textInputV1Language(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t serial,
const char* language)
{
}
static void textInputV1TextDirection(void* data,
struct zwp_text_input_v1* textInputV1,
uint32_t serial,
uint32_t direction)
{
}
static const struct zwp_text_input_v1_listener textInputV1Listener =
{
textInputV1Enter,
textInputV1Leave,
textInputV1ModifiersMap,
textInputV1InputPanelState,
textInputV1PreeditString,
textInputV1PreeditStyling,
textInputV1PreeditCursor,
textInputV1CommitString,
textInputV1CursorPosition,
textInputV1DeleteSurroundingText,
textInputV1Keysym,
textInputV1Language,
textInputV1TextDirection
};
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
@ -2172,6 +2569,21 @@ GLFWbool _glfwCreateWindowWayland(_GLFWwindow* window,
return GLFW_FALSE;
}
if (_glfw.wl.textInputManagerV3)
{
window->wl.textInputV3 =
zwp_text_input_manager_v3_get_text_input(_glfw.wl.textInputManagerV3, _glfw.wl.seat);
zwp_text_input_v3_add_listener(window->wl.textInputV3,
&textInputV3Listener, window);
}
else if (_glfw.wl.textInputManagerV1)
{
window->wl.textInputV1 =
zwp_text_input_manager_v1_create_text_input(_glfw.wl.textInputManagerV1);
zwp_text_input_v1_add_listener(window->wl.textInputV1,
&textInputV1Listener, window);
}
return GLFW_TRUE;
}
@ -2192,6 +2604,15 @@ void _glfwDestroyWindowWayland(_GLFWwindow* window)
if (window->wl.activationToken)
xdg_activation_token_v1_destroy(window->wl.activationToken);
if (window->wl.textInputV1) {
zwp_text_input_v1_destroy(window->wl.textInputV1);
_glfw_free(window->wl.textInputV1Context.preeditText);
_glfw_free(window->wl.textInputV1Context.commitTextOnReset);
}
if (window->wl.textInputV3)
zwp_text_input_v3_destroy(window->wl.textInputV3);
if (window->wl.idleInhibitor)
zwp_idle_inhibitor_v1_destroy(window->wl.idleInhibitor);
@ -3197,6 +3618,19 @@ const char* _glfwGetClipboardStringWayland(void)
void _glfwUpdatePreeditCursorRectangleWayland(_GLFWwindow* window)
{
_GLFWpreedit* preedit = &window->preedit;
int x = preedit->cursorPosX;
int y = preedit->cursorPosY;
int w = preedit->cursorWidth;
int h = preedit->cursorHeight;
if (window->wl.textInputV3)
{
zwp_text_input_v3_set_cursor_rectangle(window->wl.textInputV3, x, y, w, h);
zwp_text_input_v3_commit(window->wl.textInputV3);
}
else if (window->wl.textInputV1)
zwp_text_input_v1_set_cursor_rectangle(window->wl.textInputV1, x, y, w, h);
}
void _glfwResetPreeditTextWayland(_GLFWwindow* window)